FitMatch

The Blueair Blue Pure 511i Max takes the Blueair F5MAX Particle + Carbon filter (Blue Pure 511i Max) as its filter; replace it every 6 months; Australian sellers list it from A$30.00 as of 22 October 2026. Fitment confirmed against the manufacturer's compatibility list.

Blueair Blue Pure 511i Max

Your air purifier

Air purifier

Confirmed against Blueair's list

Not yours? ChangeSave it · remind me
F5MAX

Takes the F5MAX

Filter · every 6 months · check the code on your old filter.

Other Blueair air purifiers and their filters

The F5MAX fits the Blue Pure 511i Max only. These Blueair models take a different filter:

Genuine

$30.00

Blueair Au · 22 Oct

Compatible

See seller

No compatible seller tracked yet

Genuine: made by Blueair. Compatible: another brand. Check certification on the seller's page.

Lowest price · $30.00

Blueair Au. Every seller we track is listed below. Some links earn us a commission.

Open Blueair Au

This air purifier also takes a pre-filter

Compare 1 seller

AUD, before delivery. Each price shows when it was checked.

Blueair AuGenuine · checked 22 Oct$30.00Open
Open cheapest seller · $30.00

Opens Blueair Au in a new tab. Their page is the source of truth for price, delivery and returns.

Not due yet?

Get a nudge when your filter is due — it's every 6 months. One email two weeks before, no newsletter. Manage or stop it anytime.

Also saves the model to a FitMatch account under this address; the email signs you in, no password.

How to change the filter in your Blueair Blue Pure 511i Max

Watch the guide or follow the steps.

Blueair Blue Pure Max - Changing the filter · Blueair (official)
  1. 1Switch the purifier off and unplug it.
  2. 2Hold the base, twist the top section a little anti-clockwise and lift it off.
  3. 3Lift the old cylindrical filter out of the base and drop the new one in, pull tab up. Take the plastic wrap off first.
  4. 4Refit the top, plug in, and hold the button until the filter light goes out (or reset it in the Blueair app).
Every number this part goes by
Retail name:
111179
Retail name:
511i Max filter
Retail name:
F5 Max
Retail name:
F5MAX

Sellers list any of these; they are the same part.

About your Blue Pure 511i Max

Blueair air purifier, air purifier — Blue Pure Max. Its filter is the F5MAX Particle + Carbon filter (Blue Pure 511i Max), part F5MAX, changed every 6 months.

Also in this air purifier: Blueair AllergenBlock filter (Blue Pure 511i Max) (every 6 months), Blueair SmokeBlock filter (Blue Pure 511i Max) (every 6 months), Blueair fabric pre-filter (Blue Pure 511i Max) (every 12 months).

Where the model number is: The model number is on the rating label on the bottom or back of the purifier; the old filter usually has its own code printed on the frame.

Fits these 1 Blueair model

Blueair1 model

Common questions
Which filter fits the Blueair Blue Pure 511i Max?
The Blueair Blue Pure 511i Max takes the Blueair F5MAX Particle + Carbon filter (Blue Pure 511i Max) (part F5MAX). Compatible filters made to the same specification also fit.
How often should I replace the filter in my Blueair Blue Pure 511i Max?
Every 6 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
Where can I buy the F5MAX in Australia?
We track 1 Australian seller for the F5MAX; the lowest listed price when we last checked was A$30.00 at Blueair Au. Prices are re-checked daily and dated on this page.
How do I fit the F5MAX in a Blueair Blue Pure 511i Max?
No tools, a few minutes: 4 steps, listed on this page with the replacement video where the maker has one.
What happens if I don't change it?
The fan works harder for less airflow, and the carbon layer stops taking smells out well before the filter looks dirty.
How do I reset the filter light?
Hold the button on the top of the purifier until the filter light goes out, or clear it in the Blueair app.

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